Hometown: Riverdale, N.Y.
Channeling: Ellen Page. With a porcelain doll-like face and wispy frame, Garner has a surprisingly big screen presence that allows her to toe the line between girlish and gritty.
Known For: Her first movie role was in the 2011 Sundance hit “Martha Marcy May Marlene.” Her first lead was in last year’s “Electrick Children,” in which she played a Mormon teen who believes in immaculate conception. She also appeared as one of Emma Watson’s cronies in “The Perks of Being a Wallflower.”
Sundance Moment: Garner plays younger sister Rose in “We Are What We Are,” who attempts to rebel against the family tradition but is bound by loyalty to her sister. “It was easy for us to play sisters,” she said of bonding with Childers, “because it was a small town and a small set, so we spent all our time together.”
Up Next: The horror flick “The Last Exorcism Part II,” the period drama “You Can’t Win” with Michael Pitt and the college comedy “HairBrained.”